Home / 76,538.16-105,596.64-47,838.24

Finding the Fourth Proportional to 76,538.16, 105,596.64 and 47,838.24

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Solution

The fourth proportional to 76,538.16, 105,596.64 and 47,838.24 is: 66,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,538.16 : 105,596.64 = 47,838.24 : x
  2. Step 2: Convert to fraction form
    76,538.16/105,596.64 = 47,838.24/x
  3. Step 3: Cross multiply
    76,538.16x = 105,596.64 × 47,838.24
  4. Step 4: Simplify right side
    76,538.16x = 5,051,557,407.51
  5. Step 5: Solve for x
    x = 5,051,557,407.51/76,538.16
  6. Step 6: Final answer
    x = 66,000.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.